https://github.com/invisiblewrench/flutter_virtual_piano

https://github.com/invisiblewrench/flutter_virtual_piano

Last synced: 8 days ago
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• Host: GitHub
• URL: https://github.com/invisiblewrench/flutter_virtual_piano
• Owner: InvisibleWrench
• License: bsd-3-clause
• Created: 2022-04-04T13:10:58.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2023-02-09T12:43:16.000Z (almost 2 years ago)
• Last Synced: 2024-11-09T10:38:32.881Z (2 months ago)
• Language: C++
• Size: 211 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
A virtual piano for flutter, that renders the keys of a piano and with support for interaction and highlighting.

## Features

Keys are based on MIDI note values so middle C (4) is 63.

Key callback are `onNoteReleased`, `onNotePressed` and `onNotePressSlide`.

`onNoteReleased` and `onNotePressSlide` has two arguments, the relevant note and the vertical position of the touch/slide on the key. The latter can be used for simulating variable velocity or polyphonic aftertouch.

## Usage

```dart

VirtualPiano(

  noteRange: const RangeValues(21, 108),

  highlightedNoteSets: const [

    HighlightedNoteSet({44, 55, 77, 32}, Colors.green),

  ],

  onNotePressed: (note, pos) {

    // Play note

  },

)

```